Learning Target
... chromatid becomes a daughter chromosome • M checkpoint-stops if chromosomes not aligned • Prophase • Metaphase • Anaphase • Telophase ...
... chromatid becomes a daughter chromosome • M checkpoint-stops if chromosomes not aligned • Prophase • Metaphase • Anaphase • Telophase ...
Revision Notes for Chapter 8 – Variety within a Species
... After the sperm have been released into the female vagina they swim up through the uterus and then into one of the oviducts. In the oviduct the sperm may fertilise an egg. No two individuals look the same as the fusing of an egg and a sperm in fertilisation is random. ...
... After the sperm have been released into the female vagina they swim up through the uterus and then into one of the oviducts. In the oviduct the sperm may fertilise an egg. No two individuals look the same as the fusing of an egg and a sperm in fertilisation is random. ...
MeiosisPPT
... Ex. The chromosome containing the gene for eye color from mom will pair up with the chromosome containing the gene for eye color from dad ...
... Ex. The chromosome containing the gene for eye color from mom will pair up with the chromosome containing the gene for eye color from dad ...
slides
... These homologous chromosomes, one from your father, and one from your mother have a. The same genes, but not necessarily the same sequence b. The same genes with the same exact sequence c. Different genes ...
... These homologous chromosomes, one from your father, and one from your mother have a. The same genes, but not necessarily the same sequence b. The same genes with the same exact sequence c. Different genes ...
JUNE EXAM QUESTIONS (LIVE) 03 JUNE 2015
... The point of overlap is called the chiasma Genetic material is exchanged between the homologous chromosomes The chromosomes line up along the equator in homologous pairs attached to the spindle fibres When the spindle fibres shorten/contract o All 4 chromosomes are pulled to one pole due to non-disj ...
... The point of overlap is called the chiasma Genetic material is exchanged between the homologous chromosomes The chromosomes line up along the equator in homologous pairs attached to the spindle fibres When the spindle fibres shorten/contract o All 4 chromosomes are pulled to one pole due to non-disj ...
The Cell Cycle - goehringteach.org
... strands begin to move away from each other toward the opposite sides of the cell. ...
... strands begin to move away from each other toward the opposite sides of the cell. ...
Cell Division
... • Cells undergo an orderly sequence of events as they grow and divide. • The sequence in the following slides show a typical cell cycle of an animal cell. • The end result are two “daughter cells.” • Each will then begin the cell cycle again. ...
... • Cells undergo an orderly sequence of events as they grow and divide. • The sequence in the following slides show a typical cell cycle of an animal cell. • The end result are two “daughter cells.” • Each will then begin the cell cycle again. ...
Meiosis Webquest
... chromosome (one set of chromosomes), thus are called haploid or _______________. a. Eggs and sperm have ½ of each pair (so they can unite during fertilization to make complete pairs (or a total set of 23 pr). b. Human eggs would have _______________ chromosomes, and sperm would have _______________ ...
... chromosome (one set of chromosomes), thus are called haploid or _______________. a. Eggs and sperm have ½ of each pair (so they can unite during fertilization to make complete pairs (or a total set of 23 pr). b. Human eggs would have _______________ chromosomes, and sperm would have _______________ ...
HUMAN GENETICS
... A. Human cells contain 23 pairs of chromosomes. That is a total of 46 chromosomes per cell. B. Human Chromosomes are classified as follows: 1. 22 pairs of Autosomesa. Structurally, autosomes are similar; however, they do contain different genes. b. These are responsible for providing us with traits ...
... A. Human cells contain 23 pairs of chromosomes. That is a total of 46 chromosomes per cell. B. Human Chromosomes are classified as follows: 1. 22 pairs of Autosomesa. Structurally, autosomes are similar; however, they do contain different genes. b. These are responsible for providing us with traits ...
Bio 11A
... 7. What is the difference between a haploid and a diploid cell? Which human cells are haploid and which are diploid? 8. Describe the process of meiosis. Compare this cell division process to mitosis. How do the processes differ and how are they similar? How many chromosomes result from each process? ...
... 7. What is the difference between a haploid and a diploid cell? Which human cells are haploid and which are diploid? 8. Describe the process of meiosis. Compare this cell division process to mitosis. How do the processes differ and how are they similar? How many chromosomes result from each process? ...
Mendel and Heredity
... What does segregation imply? This happens with your chromosomes We have 2 copies for each chromosome but can only give 1 copy to the gametes So the 2 copies you have separate or segregate when they move to the gametes ...
... What does segregation imply? This happens with your chromosomes We have 2 copies for each chromosome but can only give 1 copy to the gametes So the 2 copies you have separate or segregate when they move to the gametes ...
THE CELL CYCLE AND MITOSIS UNIT 3 ORGANIZATION AND
... • Mitosis makes new cells for repair; to replace old, damaged, or dead cells. • Mitosis makes new cells for growth. • Somatic (non sex cells) undergo mitosis. • In every mitotic division, 2 cells are made. • These cells are genetically identical to the parent cell. ...
... • Mitosis makes new cells for repair; to replace old, damaged, or dead cells. • Mitosis makes new cells for growth. • Somatic (non sex cells) undergo mitosis. • In every mitotic division, 2 cells are made. • These cells are genetically identical to the parent cell. ...
Ch 7- The Cellular Basis of Inheritance
... growth and repair (in multicellular organisms such as animals) ...
... growth and repair (in multicellular organisms such as animals) ...
File
... 13. In one or two sentences, define the term recessive trait in your own words. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ____________________________ ...
... 13. In one or two sentences, define the term recessive trait in your own words. _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ____________________________ ...
Ch. 12.1: DNA stores Information
... Human Genome Project Goal: Determine … 1. Sequence of bases in the human genome. 2. Sequences code for proteins (exons). 3. Function of resulting proteins. Began in 1990 1st Draft completed in 2000 Government funded agency cooperated w/ private companies Results published on web and available t ...
... Human Genome Project Goal: Determine … 1. Sequence of bases in the human genome. 2. Sequences code for proteins (exons). 3. Function of resulting proteins. Began in 1990 1st Draft completed in 2000 Government funded agency cooperated w/ private companies Results published on web and available t ...
cell
... human adult. In a year, this amounts to the proliferation and subsequent destruction of a mass of cells equal to an individual's body ...
... human adult. In a year, this amounts to the proliferation and subsequent destruction of a mass of cells equal to an individual's body ...
Chapte6and7Online
... ancestors are genetically uniform 6. fusion of an egg and sperm cell 8. cell that has only one copy of each chromosome 10. female gamete 11. all of an organism’s genetic material 13. sex cell; an egg or a sperm cell 15. cell that has two copies of each chromosome 17. form of nuclear division that di ...
... ancestors are genetically uniform 6. fusion of an egg and sperm cell 8. cell that has only one copy of each chromosome 10. female gamete 11. all of an organism’s genetic material 13. sex cell; an egg or a sperm cell 15. cell that has two copies of each chromosome 17. form of nuclear division that di ...
Chapter 12: Patterns of Heredity and Human Genetics
... dominant. These genes are located on the X chromosome. o For sex-linked traits, you must write genotypes like: h h X X : female with hemophilia H h X X : female carrier h X Y : male with hemophilia H X Y : normal male without hemophilia Example: Red-green color blindness: an individual can ...
... dominant. These genes are located on the X chromosome. o For sex-linked traits, you must write genotypes like: h h X X : female with hemophilia H h X X : female carrier h X Y : male with hemophilia H X Y : normal male without hemophilia Example: Red-green color blindness: an individual can ...
Session 1 Worksheet
... 1. Define negative feedback, and present an example illustrating the concept (ex: rising body temp causes blanketyblank, resulting in a lowered temp; lowered temp activates blanketyblank to increase body temp) ...
... 1. Define negative feedback, and present an example illustrating the concept (ex: rising body temp causes blanketyblank, resulting in a lowered temp; lowered temp activates blanketyblank to increase body temp) ...
Chapter 12 Study Guide - Maples Elementary School
... The first 22 pairs of chromosomes are called ______________. What is a mutation? There are two main types of mutations? What are they? What kind of mutation is caused by a piece of DNA breaking away from its chromosome and becoming attached to a nonhomologous chromosome? What kind of mutation is cau ...
... The first 22 pairs of chromosomes are called ______________. What is a mutation? There are two main types of mutations? What are they? What kind of mutation is caused by a piece of DNA breaking away from its chromosome and becoming attached to a nonhomologous chromosome? What kind of mutation is cau ...
Chromosome
A chromosome (chromo- + -some) is a packaged and organized structure containing most of the DNA of a living organism. It is not usually found on its own, but rather is complexed with many structural proteins called histones as well as associated transcription (copying of genetic sequences) factors and several other macromolecules. Two ""sister"" chromatids (half a chromosome) join together at a protein junction called a centromere. Chromosomes are normally visible under a light microscope only when the cell is undergoing mitosis. Even then, the full chromosome containing both joined sister chromatids becomes visible only during a sequence of mitosis known as metaphase (when chromosomes align together, attached to the mitotic spindle and prepare to divide). This DNA and its associated proteins and macromolecules is collectively known as chromatin, which is further packaged along with its associated molecules into a discrete structure called a nucleosome. Chromatin is present in most cells, with a few exceptions - erythrocytes for example. Occurring only in the nucleus of eukaryotic cells, chromatin composes the vast majority of all DNA, except for a small amount inherited maternally which is found in mitochondria. In prokaryotic cells, chromatin occurs free-floating in cytoplasm, as these cells lack organelles and a defined nucleus. The main information-carrying macromolecule is a single piece of coiled double-stranded DNA, containing many genes, regulatory elements and other noncoding DNA. The DNA-bound macromolecules are proteins, which serve to package the DNA and control its functions. Chromosomes vary widely between different organisms. Some species such as certain bacteria also contain plasmids or other extrachromosomal DNA. These are circular structures in the cytoplasm which contain cellular DNA and play a role in horizontal gene transfer.Compaction of the duplicated chromosomes during cell division (mitosis or meiosis) results either in a four-arm structure (pictured to the right) if the centromere is located in the middle of the chromosome or a two-arm structure if the centromere is located near one of the ends. Chromosomal recombination during meiosis and subsequent sexual reproduction plays a vital role in genetic diversity. If these structures are manipulated incorrectly, through processes known as chromosomal instability and translocation, the cell may undergo mitotic catastrophe and die, or it may unexpectedly evade apoptosis leading to the progression of cancer.In prokaryotes (see nucleoids) and viruses, the DNA is often densely packed and organized. In the case of archaea by homologs to eukaryotic histones, in the case of bacteria by histone-like proteins. Small circular genomes called plasmids are often found in bacteria and also in mitochondria and chloroplasts, reflecting their bacterial origins.